Determinants of budget overruns on IT projects

F. Calisir, C. A. Gumussoy*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Using data collected from a sample of 76 project managers from 64 firms, we explore the relative impact of project characteristics, frequency of problems encountered on the projects, perceived impact of these problems on the budget performance, project managers' personal characteristics, and project managers' conflict management styles on budget overruns on information technology (IT) projects. The study reveals that schedule overrun is the strongest predictor of budget overrun. Usage level of accommodation as a conflict management style, project team size, and project management experience were also found to be important, but to a lesser extent. We then utilize the findings to construct a model that predicts budget overrun as a percentage of the initial budget estimate. We conclude with recommendations for future research.

Original languageEnglish
Pages (from-to)631-636
Number of pages6
Issue number6
Publication statusPublished - Jun 2005


  • Budget overrun
  • Conflict management
  • IT projects
  • Project management experience


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